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Corylus americana Walter

Gordon C. Tucker
USA, Illinois, Cumberland
7-Jul-2005
Corylus americana Walter

Gordon C. Tucker
U. S. A., Illinois, Jasper
27-Jul-2006
Corylus americana Walter

Gordon C. Tucker
U. S. A., Rhode Island, Washington
26-Jul-2008
Corylus americana Walter

Gordon C. Tucker
U. S. A., Illinois, Moultrie
25-Sep-2002
Corylus americana Walter

Gordon C. Tucker
U. S. A., Illinois, Coles
7-Jul-2005
Corylus americana Walter

Gordon C. Tucker
U. S. A., Illinois, Coles
25-Jul-2014
Corylus americana Walter

Gordon C. Tucker and John E. Ebinger
U. S. A., Illinois, Macon
4-Oct-2003
Corylus americana Walter

Gordon C. Tucker and Edwin H. Horning
U. S. A., New York, Suffolk
6-Aug-1998
Corylus cornuta Marsh.

Kerry Barringer
U. S. A., New Jersey, Passaic
31-Jul-2003
Corylus cornuta Marsh.

Rudy G. Koch
U. S. A., Wisconsin, Iron
20-Jul-1975
Corylus cornuta Marsh.

Gordon C. Tucker
U. S. A., Wisconsin, Vilas
10-Jul-2012
Corylus cornuta Marsh.

Gordon C. Tucker
U. S. A., Wisconsin, Vilas
10-Jul-2012
Corylus cornuta Marsh.

Gordon C. Tucker
U. S. A., Wisconsin, Lincoln
12-Jul-2012
Corylus cornuta Marsh.

Tad M. Zebryk
U. S. A., Massachusetts, Hampden
29-Jul-2002
Corylus cornuta var. californica (A. DC.) Sharp

Gordon C. Tucker
U. S. A., Washington, Grays Harbor
16-May-2002
Corymbia leichardtii

J. B. Williams
Australia, Queensland, North Kennedy District
9/3/1987
Corymbia leichhardtii (F.M. Bailey) K.D. Hill & L.A.S. Johnson

J.B. B. Williams
Australia, Queensland, North Kennedy District
1987-09-03
Corynanthe

J. Dibata
Gabon, Ogooue-Ivindo,
8/5/1993
Cotoneaster

Gordon C. Tucker
U. S. A., Rhode Island, Washington
26-Jul-2008
Cotoneaster

Gordon C. Tucker
U. S. A., Illinois, Coles
5/6/2015
Cotoneaster

Gordon C. Tucker
U. S. A., Illinois, Coles
28-Apr-2005
Cotoneaster X suecicus [C. dammeri X C. conspicuus]

Gordon C. Tucker
U. S. A., Illinois, Coles
5/13/2003
Cotoneaster X suecicus [C. dammeri X C. conspicuus]

Gordon C. Tucker and Dendrology Class
U. S. A., Illinois, Coles
4/15/2003
Crataegus berberifolia Torr. & A. Gray

Gordon C. Tucker and Edwin H. Horning
U. S. A., New York, Suffolk
28-Jul-2000
Crataegus berberifolia Torr. & A. Gray

Gordon C. Tucker and Edwin H. Horning
U. S. A., New York, Suffolk
1-Aug-1997